CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 2,574	$ 9,653	$ (3,856)	$ 18,303
Other comprehensive income (loss):
Net foreign currency translation gain (loss)	(30)	16	(46)	(31)
Change in net unrealized loss on marketable securities	(95)	(136)	(1,570)	(135)
Tax benefit on other comprehensive income (loss)	22	31	360	30
Other comprehensive loss, net of tax	(103)	(89)	(1,256)	(136)
Comprehensive income (loss)	$ 2,471	$ 9,564	$ (5,112)	$ 18,167